Actionnement et contrôle optique de matériaux hybrides photoactifs nanostructurés multifonctionnels

该项目旨在通过利用含有偶氮苯衍生物等光致变色分子的材料的光开关特性，开发可以**光学调谐的微结构和纳米结构的功能系统。近年来，在信息和通信技术领域，基于微结构和纳米结构设备(用于集成光学、高效光源...)的发展，出现了新的方法。或使用创新的媒体和材料(柔性电子、有机**光电子...)。**这些方法是由于技术发展而成为可能的，这些技术发展现在允许将物质**处理到极致规模，并将不同材料整合在同一架构中。在这种背景下，**无色项目的主要目标是研究含有**光致变色材料的杂化结构在生物医学应用中用于光学可调器件的潜力。**含有偶氮苯衍生物的材料除了**其光致变色性能外，还表现出非常独特的光机械响应。这些变形是由光的偏振引导的，可能在**不同的尺度上表现出来。然后，将这些化合物与其他功能材料耦合可以被设想为**开发可以通过光刺激来驱动、调谐或重新配置的结构和设备的路线。**作为概念验证，我们将首先开发简单的工艺，将**光活性混合材料层与**通常的集成光学设备(用于电信应用)进行耦合，使用标准硅**技术制造。我们将考虑环形谐振器、耦合器、滤光器和光栅等器件，这些器件的运行关键取决于它们的结构。然后，我们将描述这种光活性材料对它们功能的控制。最后，我们将与支持该项目的公司合作，**探索将这种方法应用于现实世界设备的可能性。**

The ATONAL project aims at developing micro- and nano-structured functional systems that can be optically**tuned, by exploiting the photoswitching properties of materials containing photochromic molecules such as**azobenzene derivatives. In recent years, new approaches have emerged, in the field of information and**communication technologies, based on the development of micro- and nano-structured devices (for integrated**optics, efficient light sources...) or on the use of innovative media and materials (flexible electronics, organic**optoelectronic...).**These approaches have been made possible by the technological developments that now allow matter**processing down to ultimate scales and integration of different materials in a same architecture. In this context,**the main objective of the ATONAL project is to investigate the potentiality of hybrid structures incorporating**photochromic materials for the elaboration of optically tunable devices in biomedical applications.**Materials incorporating azobenzene derivatives exhibit quite unique photomechanical responses in addition to**their photochromic properties. These deformations are directed by the light polarization and may manifest at**different scales. Coupling these compounds with other functional materials may then be envisaged as a route**for developing structures and devices that can be actuated, tuned or reconfigured by means of optical stimuli.**As a proof of concept, we will first develop simple processes to couple photoactive hybrid material layers with**usual integrated optical devices (for telecommunication application), fabricated with standard silicon**technologies. We will consider devices such as ring resonators, couplers, filters and gratings, the operation of**which critically depends on their structure. We will then characterize the control of their functioning conferred**by the photoactive material. Finally, in collaboration with the companies supporting the project, we will**explore the possibility to implement this approach into real-world devices.**